This dataset mainly contains piano music clips from two games under miHoYo, "Genshin Impact" and "Honkai: Star Rail". These piano clips have been converted into ABC music scores. The annotation information includes structural details corresponding to the musical style of the game scene. This dataset can not only be used as a result of game music extraction, but also as an important training material for research in the field of music generation (especially mihoyo game music). Researchers can use this resource to deeply analyze music features such as notes and melody structure, and provide substantial data support for the training and enhancement of music generation algorithms.